Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é o alvo molecular listado sob a marca registrada de irvalec®
 ###Tabelas: CREATE TABLE scaled_taxation (scaled_taxation_id AUTO_INCREMENT PRIMARY KEY, Currency Bracket: VARCHAR, Dollars Taxed in Bracket: VARCHAR, Rate: VARCHAR, Taxes From Bracket: VARCHAR, After Tax Income: VARCHAR, Percentage of Income Kept: VARCHAR) CREATE TABLE season_1 (season_1_id AUTO_INCREMENT PRIMARY KEY, # INT, Episode VARCHAR, Rating VARCHAR, Share INT, Rating/Share (18-49) VARCHAR, Viewers (millions) VARCHAR, Rank (Night) VARCHAR) CREATE TABLE fresh_water_withdrawal_by_country (fresh_water_withdrawal_by_country_id AUTO_INCREMENT PRIMARY KEY, Country VARCHAR, Total Freshwater Withdrawal (km 3 /yr) VARCHAR, Per Capita Withdrawal (m 3 /p/yr) INT, Domestic Use (m 3 /p/yr)(in %) VARCHAR, Industrial Use (m 3 /p/yr)(in %) VARCHAR, Agricultural Use (m 3 /p/yr)(in %) VARCHAR) CREATE TABLE compounds_from_marine_sources_in_clinical_level (compounds_from_marine_sources_in_clinical_level_id AUTO_INCREMENT PRIMARY KEY, Clinical Status VARCHAR, Compound Name VARCHAR, Trademark VARCHAR, Marine Organism α VARCHAR, Chemical Class VARCHAR, Molecular Target VARCHAR, Clinical Trials β VARCHAR, Disease Area VARCHAR) CREATE TABLE slam_dunk_contest (slam_dunk_contest_id AUTO_INCREMENT PRIMARY KEY, Pos. VARCHAR, Player VARCHAR, Team VARCHAR, Height VARCHAR, Weight INT)  
SELECT Molecular Target FROM compounds_from_marine_sources_in_clinical_level WHERE Trademark = Irvalec ®